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84269385 = 32513713669
BaseRepresentation
bin1010000010111…
…01100101001001
312212120022212100
411001131211021
5133033110020
612210104013
72042164224
oct501354511
9185508770
1084269385
1143627922
122427b009
13145c6755
14b2985bb
1575e8a90
hex505d949

84269385 has 24 divisors (see below), whose sum is σ = 147143880. Its totient is φ = 44612352.

The previous prime is 84269359. The next prime is 84269443. The reversal of 84269385 is 58396248.

84269385 is a `hidden beast` number, since 8 + 4 + 269 + 385 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 19289664 + 64979721 = 4392^2 + 8061^2 .

It is not a de Polignac number, because 84269385 - 26 = 84269321 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 84269385.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 670 + ... + 12999.

It is an arithmetic number, because the mean of its divisors is an integer number (6130995).

Almost surely, 284269385 is an apocalyptic number.

It is an amenable number.

84269385 is a deficient number, since it is larger than the sum of its proper divisors (62874495).

84269385 is a wasteful number, since it uses less digits than its factorization.

84269385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13817 (or 13814 counting only the distinct ones).

The product of its digits is 414720, while the sum is 45.

The square root of 84269385 is about 9179.8357828449. The cubic root of 84269385 is about 438.4195797977.

The spelling of 84269385 in words is "eighty-four million, two hundred sixty-nine thousand, three hundred eighty-five".

Divisors: 1 3 5 9 15 45 137 411 685 1233 2055 6165 13669 41007 68345 123021 205035 615105 1872653 5617959 9363265 16853877 28089795 84269385